Cita APA (7th ed.)
Hill, C., & Smith, M. (2005). International relations and the European Union (ed.). Oxford University Press.
Cita Chicago (17th ed.)
Hill, Christopher, i Michael Smith. International Relations and the European Union. ed. Oxford: Oxford University Press, 2005.
Cita MLA (9th ed.)
Hill, Christopher, i Michael Smith. International Relations and the European Union. ed. Oxford University Press, 2005.
Atenció: Aquestes cites poden no estar 100% correctes.